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Açılma Kapanma Bölgelerinde İyileştirilmiş Çok Seviyeli Tersinir Video Damgalama

Bu makalede video üzerindeki açılma kapanma bölgelerinin hareket dengelemeli öngörü hatalarının histogramlarının değiştirilmesine dayalı tersinir video damgalama yöntemi üzerindeki etkisi incelenmiş ve açılma kapanma bölgelerinde daha iyi damgalama kapasitesi ve PSNR sağlayan yeni bir tersinir video damgalama algoritması geliştirilmiştir. Açılma kapanma bölgelerinde, geleneksel hareket kestirimi yöntemleri yüksek öngörü hatası hesaplar. Bu yüzden, öngörü hatalarını değerlendiren damgalama algoritmaları düşük damgalama kapasitesi ve zayıf görüntü kalitesi verir. Öngörü hatalarını küçültmek için açılma kapanma bölgelerini algılayan algoritmaların hareket kestiriminde kullanılması gerekmektedir.

Anahtar Kelimeler:

Açılma Kapanma Algılama, Tersinir Video Damgalama, Video Damgalama, Veri Saklama, Hareket Kestirimi

Multilevel Reversible Video Watermarking with Improvement on Occluded Areas

This paper investigates the influence of the occlusion in reversible video watermarking technique based on histogram modification of motion compensated prediction error and presents a novel reversible video watermarking algorithm which has better embedding capacity and PSNR in occluded areas. In occluded areas, conventional motion estimation techniques calculate higher prediction error. Therefore, watermarking algorithm which exploits prediction error has small embedding capacity and poor image quality. To reduce the prediction error, occlusion detection algorithms must be employed in motion estimation.

Keywords:

Occlusion Detection, Reversible Video Watermarking, Video Watermarking, Data Hiding, Motion Estimation,

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G. Langelaar, I. Setyawan and R. Lagendijk, “Watermarking digital image and video data: a state-of-the-art overview,” IEEE Signal Processing Magazine, vol. 17, pp. 20–46, Sept. 2000.
J. Tian, “Reversible data embedding using a difference expansion,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 13, no. 8, pp. 890–896, Aug. 2003.
Y. Hu, H. K. Lee and J. Li, “DE-based reversible data hiding with improved overﬂow location map”, IEEE Transactions on Circuits and Systems for Video Technology, vol. 19, no. 2, pp. 250–260, Feb. 2009.
Z. Ni, Y.Q. Shi, N. Ansari and W. Su, “Reversible Data Hiding”, IEEE Transactions on Circuits and Systems for Video Technology, vol. 16, no. 3, pp. 354-362, Mar. 2006.
W.L. Tai, C. M. Yeh and C. C. Chang, “Reversible data hiding based on histogram modification of pixel differences”, IEEE Transactions on Circuits and Systems for Video Technology, vol. 19, no. 6, pp. 906–910, June 2009.
B. Baraklı, İ. Yıldırım and C. Yüzkollar, “Aradeğerleme Hatalarının Histogram Değiştirilmesine Dayalı Tersinir Görüntü Damgalama”, Düzce Üniversitesi Bilim ve Teknoloji Dergisi, vol. 1, no. 1, pp. 58-68, 2013.
İ. Yıldırım and C. Vural, “Reversible video watermarking based on histogram modification of motion compansated prediction error”, Signal Processing and Communications Applications Conference (SIU), 2012 20th.
C. Vural and B. Baraklı, “Adaptive reversible video watermarking based on motion-compensated prediction error expansion with pixel selection”, Signal, Image and Video Processing, vol. 10, no. 7, pp. 1225-1232, 2016.
C. Vural and B. Baraklı, “Reversible video watermarking using motion-compensated frame interpolation error expansion”, Signal, Image and Video Processing, vol. 9, no. 7, pp. 1613-1623, 2015.
C. Vural and İ. Yıldırım, “Reversible video watermarking through recursive histogram modification”, Multimedia Tools and Applications, vol. 76, no. 14, pp. 15513-15534, 2017.
K. L. Chung, W. J. Yang, T.C. Chang and H. Y. M. Liao, “Efficient multilevel reversible data hiding for video sequences using temporal and spatial approach”, Proceedings of 2009 APSIPA Annual Summit and Conference, Sapporo, Japan, Oct. 4-7, 2009.
D. Wang, L. Zhang, A. Vincent, “Motion-compansated frame rate up-conversion—Part I: Fast multi-frame motion estimation”, IEEE Transactions on Broadcasting, vol. 56, no. 2, pp. 133-141, June 2010.